Detinning-machine.



v W. M. CONNOR.

DETINNING MACHINE.

APPLICATION FILEDVAUG. 1. 1911.

1 ,O21 ,302. Patented Mar. 26, 1912.

3 SHEETS-SHEET 1.

W. M. CONNOR.

DETINNING MACHINE.

APPLIOATION FILED AUG.1.1911.

1,021 ,302.. Patented Mar. 26, 1912.

3 BHBBTSTSHEBT 2.

/N VENTO/1 W. M. CONNOR.

DETINNING MACHINE.

APPLICATION FILED AUG. 1. 1911.

` 1,021,302. Patented Mar. 26, 1912.'

3 SHEETS-SHEET 3.

-WILLIAM M. CONNOR, F BALTIMORE, MARYLAND.

DETINNING-MACHINE.

y Specification of Letters Patent.

Application led August 1, 1911.

Patented Mar. 26, 1912. serial No. 641,791.

To 'all whom z'tmay concern:

Be it known that I, WILLIAM M. CONNOR,

a citizen of the United States, residing at Baltimore city, State of Maryland, have in- 5 vented certain new and useful Improvements in Detinning-Machines, of which the following is a specification.

This invention relates to machines for removing the deposit of valuable metal from a base of relatively less value; such `for instance as the removal of tin from scrap tin plate or the like, and has for its object the design of a machine ofthis type whereby the material to bev treated is subjected to aV ,thorough scraping action to remove all traces of the plate. This object is obtained by a series of sets of par'allelly arranged scraping rolls which are, so geared that the rolls of each set rotate at a uniform speed while the speed'of each set is increased progressively as the material is fed through the machine. A still further object being to provide means for imparting a lateral motion to the rolls which tends to break joint between the. scraping points on 'the rolls.

With the foregoing-and other4 objects in view, the invention consists in the combination and arrangement of the parts as will be hereinafter more fully described and shown in the accompanying drawings,l and particularly pointed out in the appended claims, it being'understood that changes in the form arrangement of the parts, proportion as to size, and minor details may be made, within 35, the scope of the claims without departing from the spirit and scope of the invention, or sacrificing any of the advantages pertaining thereto.

In the accompanying drawings forming- 40 a part of this specification, Figure 1 is a view in elevation of one side of the machine; Fig. 2 is a plan view of the complete machine; Fig. 3 is a front `elevation of the same; Fig. 4 is a side elevation of the reverse side of the machine from that shown in Fig. 1; Fig. 5 is a sectionalview in the nature 'of a diagram of the operating rolls, and Fig. 6 is a det-ail sectional view of the bearings showing in elevation the causes for imparting longitudinal movement to the rolls.

Similar numerals` of reference designate corresponding parts in 'all of the figures of the drawings.

For the support of the operating parts of the present embodiment of the invention,

is a gear 25 which meshes with a there is' provided a frame A,'cnsisting of end plates 1 and 2 connected by transverse braces 3. Slidably mounted on bars 4, secured to the end pieces 1 and 2 is a drawer 5 for the deposit of the metal removed from the scrap material. Secured to the frame pieces 1 and 2 are base blocks 6 and 7 which serve as the lower half of a set of bearings for a series of transversely disposed shafts 8, 9, 10, 11, 12 and 13. Disposed above the bases 6 and 7 are bearing blocks 14 and 15 which serve as the other half of the bearing for the shafts 8, 9 10 etc., as well as the lower bearing yfor a second set of transversely disposed shafts 16, 17, 18, 19, 2O and 21 corresponding and identical with the aforementioned shafts 8, 9, 10, etc., leap bearing blocks 22 and 23 are respectively fitted to the blocks 14 and 15 thus completing the set of bearings.

Projecting from the base block 6 is an auxiliary bearing 24 and supports the end of t-he main drive shaft 9, which receives power from any available source. ySecured to the shaft 9 between the blocks 7 and 24 pinion 26, secured to the shaft 16, saidv pinion being approximately one half the diameter of the gear 25. Secured on the opposite end of the shaft 9 is a pinion 27 which meshes with a gear 28 secured to the shaft 18, said pinion 27 being approximately one half the size of the gear 28; secured to the shaft 18 adjacent to the gear 28 is another pinion 29 which is approximately one half the size of a gear 30, with which it meshes, said gear being secured to the shaft 11. This train or arrangement of gearing is carried throughoutl the series of shafts, thus increasing the speed progressively throughout the series, from the feed end to the outlet end of the machine.

At the end .of the shafts remote from the train of gear just described, each shaft of a set is provided with a gear 31, 32, which intermesh and are of the same size, which serve to transmit power from the live `0r driven shaft of the set to the dead shaft,

thus it will be seen that the two shafts of a set will be driven ata uniform speed, but

each set will be driven at a different speedto that of each adjacent set.

Although an one of a number of devices may -be used or imparting a longitudinal movement to the rolls, a simple form is herewith shown which consists of cam faces 33, 34' formed on the bearings aroundI each shaft at either end, and cam lugs 35, 36, formed on the enlarged portion of the shaft, and as shown in detail in Fig. 6 is so arranged that the relative movement of each shaft of a set willbe in a direction opposite to that of the other of the same set.

It will be seen by reference to Fig. 5 that the first set of rolls or shafts 13 and 21 are covered with leather or other suitable material 37, while the other rolls are covered with a specially prepared abrasive coverin consisting of a strip 38 of suitable materia, such as leather or canvas which has projecting from one side thereof numerous rojec ions 39, which is in effect a wire brush. These strips 38 are secured adjacent, one end of the shafts and then wound spirally around the shaft and secured at the opposite end, the size of the wire used on each set of rolls is decreased toward the high speed end of the machine, and the number of abrasive points are correspondwingly increased as indicated. Thus it will 25 be seen that as the scrap metal is fed to the machine through the feed rolls`13 and 2 1 it is first acted on by the rolls 12-and 20, and as these rolls are revolving at a greater speed than the feeding rolls, an amount of the metal plate is removed and deposited in the box 5. As each succeedin set of rolls are geared to aa higher s'peed t an the preceding set, the same action as above described is obtained, that is each set of rolls act as a retarding and atthe same time a scraplng set. s

By reason of the'longitudinal movement imparted to the rolls by the cams, a further scraping eect is secured, at the same time preventing any tendency of the scraping points to travel. vIt is of course to be understood that the series of rolls are not to be limited to the number of sets shown asa greater or less number may be used to meet the particular requirements. It may .also be stated that the device may be used advantageously for polishing metals or other objects. f

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is;

1.` A detinning machine, comprising a plurality of successively acting scraping means, and means for operating said scraping means at an increasing peripheral 4spee from the feed to the delivery end of the machine.

2. A detinning machine, comprising a plurality of successively acting scraping rollers, means for imparting to said rollers a lonfritudinally reciprocating movement, and

meagns for rotating said rollers and imparting increased peripheral speeds thereto from the feed to the outlet end of the machine.

3. A detinning machine, comprising a plu. rality of successively acting scraping rollers embodying cylinders having wire prongs projecting therefrom, said prongs decreasingfin diameter and number on each succeeding roller, and means for rotating said rollers. i In testimony whereof I affix my signature in presence of two witnesses. v

WILLIAM M. CONNOR. VVitnesses:

E. WALToN BREWINGTON, BROWN M. ALLEN. 

